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HIGHCVE-2026-5598Published Modified CNA bcorg

CVE-2026-5598: Non-constant time comparisons risk private key leakage in FrodoKEM.

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.80.1, from 1.82 before 1.84.

Metrics

CVSS v4.0
8.9
Severity
HIGH
Fixed in
1.80.1
Affected Products
1

Fix available

1.80.11.80.21.84
Affected packages
  • Legion of the Bouncy Castle Inc. / BC-JAVA
    < 1.80.2 (from 1.71) · < 1.80.1 (from 1.81) · < 1.84 (from 1.82)
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:P/AU:Y/U:Red